Machine for cutting fig-bars and similar articles.



PATENTED OCT. 22. 1907.

.A. S. GAIRNGROSS. MACHINE FOR CUTTING FIG BARS AND SIMILAR ARTICLES.

APPLICATION FILED DEO.10,,1906.

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'No. 869,057. PATENTED col-22.1907.

A. s. GAIRNGROSS.

MACHINE FOB. CUTTING FIG BARS AND SIMILAR ARTICLES. ABPLIOATION rum)DBO.10. 1906.

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ANDREW S. OAIRNCROSS, OF ST. PAUL, MINNESOTA.

Specification of Letters Patent.

Patented Oct. 22, 1907.

Application filed December 10,1906. Serial No. 347,205.

To all whom it may concern:

Beit known that 1, ANDREW S. OAIRNCROSS, a citizen of the United States,residing at St. Paul, in the county of Ramsey and State of Minnesota,have invented certain new and useful Improvements in Machines forOutting Fig-Bars and Similar Articles, of which the following is aspecification.

My invention relates to improvements in machines for cutting fig barsand similar articles, and consists particularly in the features ofconstruction and combination hereinafter particularly described andclaimed.

In the accompanying drawings forming part of this specification,Figure 1. is a side elevation of my improved machine, Fig. 2 is asimilar view enlarged of the parts in operative position, Fig. 3 is aview illustrating the position of the knives in use, Fig. 4 is a frontView of my machine, and Fig. 5 is a perspective view partly broken away.

In the drawings A represents the framework of the machine upon the bed 2of which is adapted to be placed a pan 33 holding the fig bars 4 orother articles to be cut. Having pivotal support 5 in upwardly extendingbrackets (5 at the rear end of the bed is a frame 7 formed with a seriesof slots 8 to receive the rotary knives, as hereinafter pointed out. Theframe 7 is provided with rearwardly projecting arms 9 carrying at theirouter ends upwardly curved cams 10.

Having pivotal support 11 on the sides of the frame work are upwardlyextending bars 12. Supported in the upper ends of the bars 12 is a shaft13 upon which is rotatably mounted a series of arms 14, each arm havingjournaled in its free end a circular knife 15. Swiveled upon the ends ofthe shaft 13 is a hand lever 16 extending to the front end of themachine, as shown in Fig. 1. The bars 12 constitute, it will be seen, aswinging carriage for the knives 15, the movement of said carriage beinglimited by rods 17 connected with the bars 12 and slidable through stops1.8. Mounted upon the ends of the shaft 13 are rollers 19 adapted to runupon the side bars of the guide frame 7. V

ln operation the parts normally stand in the position shown in Fig. 2,tho'knifo carriage being swung rearwardly to bring the rollers 19 intoengagement with the cams 10 to swing the guide frame out of contact withthe bed of the machine. The pan of fig bars may then be placed upon themachine bed as shown in Fig. 2. The operator may then by means of thehandle 16 draw the knife carriage forward. This will first carry therolls 19 out of contact with the cams 10 allowing the guide frame todrop. As the carriage is then drawn forward the knives will travel inthe slots 8 cutting the fig bars. By having the knife supporting armsindependently swiveled they will separately follow the inequalities ofthe pan 3, as indicated in Fig. 3. After the bars are cut and the partsreturned to the position shown in Fig. 2 the knives rest upon a crossbar 20, preferably of wood, arranged between the side brackets.

As will be evident, the great advantage of my invention is that theknives will independently follow the plate 3, thus resulting incompletely cutting through the fig bars regardless of any inequalitiesin the bottom of the plate.

1. In a machine of the class described, the combination with aframe-work provided with a tray supporting bed, of a carriage movnblysupported by said frame-work at the rear of said bed, a series offorwardly extending arms having independent pivotal support in saidcarriage, and cutting blades supported in the forward ends of said arms.

2. in a machine of the class described, the combination with aframe-work formed with a tray supporting bed, of a guide frame pivotallysupported over said bed and formed with a series of parallel slots, acarriage movubly supported upon saidframework" in relation to said bed,a re ciprocating carriage carried by said frame, a series of armsindependently supported in said carriage, and blades car ricd by saidarms in position to travel in said slots.

2:). in a machine of the class described, the combination with aframework formed with a tray supporting bed, of a guide frame pivotallysupported above said bed, and formed with a series of parallel slots, acam carried by aid guide frame at the rear of said bed, a reciprocatingcarriage arranged in position to engage with said cam to tilt said guideframe, and a series of cutting blades having independent movable supportin said carriage in position to travel in said slots.

i. In a machine of the class described, the combination with aframe-work formed with a supporting bed, of a guide frame having pivotalsupport at the rear of said bed and formed with a series of parallelslots, a cam carried by said guide frame at the rear of said bed, amovably supported carriage arranged in position to engage with said camand tilt said guide frame, a series of forwardly extend- .ing armshaving independent pivotal support in said carriago, knives carried bythe forward ends of said arms in position to travel in said slots, andmeans for drawing said carriage forward.

5. In a machine of the class described, the combination with aframe-work formed with a supporting bed, of a guide frame pivotallysupported at the rear of said bed and formed with a series of parallelslots, cams carried by said guide frame at the rear of said bed,upwardly extending bars pivotally supported upon the sides of saidframe, for wardly extending arms having independent swing support in theupper ends of said bars, means carried by said bars for engaging withsaid cams, cutting blades mounted in the forward ends of said arms andan actuating handle extending forwardly from the upper ends of saidbars.

In testimony whereof I aflix my signature in presence of two witnesses.

ANDREW S. CAIRNCROSS.

Witnesses H. S. JOHNSON, I-IA'JJTIE SMITH.

